Wheel



L. H. PERLMAN.

WHEEL.

APPLICATION FILED SEPT. 29, |919.v

L434L223, Patented 00h31, 11922.

www

Patented @et 3l, i922.

NETE@ STATES LOUIS H. PERLE/IAN, OF NEW YORK, N. Y., ASSIGNOR TO GENERAL MOTORS GORPORA- TION, A CORPORATION OF DELAYARE.

WHEEL.

Application filed. September 29, 1919. Serial No. 327,148.

T o all whom it may concern Be it known that I, Louis H. PERLMAN, a citizen of the United States, residing at New York, in the county of New York and 3 State of New York, have invented certainv new and useful Improvements in Vheels; and l do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appert-ains to make and use the same.

This invention relates to improvements in wheels of the type employed as carrier wheels for automobiles, and appertains more particularly to the deinountable rim retaining and locking' mechanism thereof.

Among the objects in. view are the increasingof the facility and efficiency of demountable rim locking; devices, the decreasing of the liability of loss of parts, and the obtaining of the greatest possible simplicity' in the construction and operation of the parts.

lith these and further objects in view as will in part hereinafter become apparent and in part be stated, the invention comprises certain novel constructions, combina tions and arrangements of parts as subsequently specified and claimed.

In the accompanying drawings;-

F'igjure l is a. transverse section through the peripheral portion of a wheel embodying the features of the present invention, the down lines being,l omitted for clearness of disclosure, and parts beingn seen in elevation.

.Figure 2 is a vertical, central section therethrough, parts being' seen 1n elevation.

Figure 3 1s a plan view of the parts seen l0 in Figure 2 with the demountable rim removed.

Figure 4 is a longitudinal, central section through the shaft casing` of one of the locking devices, the locking` shaft being seen in elevation in its maximum withdrawn position.

Figure 5 is a similar view of the same but with the locking` shaft in its intially introduced or n'ianiinum projected position.,

which position is attainable only in the absence of the operating-mit-retaining washer. .Figure 6 is a transverse section taken on the plane indicated by line (1i-6 of Figure 4. Figure 7 is a similar section taken on the plane indicated by line 77 of Figure 4:.

Figure 8 is a plan view of a modified embodiment of the operating-nut retaining washer detached. I

Figure 9 is a view similar to Figure 6 including` a. slightly different embodiment oV4 the operating-nut-retaining washer.

Referringto the drawings by numeralst 1 indicates the wood felly of an ordinary automobile wheel provided with the usual fixed rim or felly band 2 having,l the customary annular' stop flange These parts represent the peripheral portion of the usual wheel body of an automobile wheel. A demountable rim a of any of the well known types is mounted on the wheel body and arranged to have its inner edge engage the stop flange 3, its outer portion being sustained on the wheel by lockingY devices, each consist-ing of a wedge and. an actuator therefor connecting;- the wedge to the wheel body. The number of locking' devices em ployed may vary according to the size and work to be done by the wheel, and are spaced substantially uniformly apart about the wheel as is customary with wedgelocking` devices for demountable rims. Only one such locking' device is shown .in the drawing, since the showing of any other of these devices would merely involve duplicate disclosure. This lockingdevice consists of a radially-disposed bolt-like shaft 5 slidingly mounted through the felly and felly band, and having' its outer end tapered to wedge shape as seen at 6.

rlhe rim fi is formed with a depression in .its inner face for each wedge 6, the depression being shaped to present inclined walls 7, 7, one of which is designed to be engaged by one of the inclined faces of the wedgje t3. The contacting faces are those which may be called the inner faces since they are nearer that face of the wheel which is usually referred to as the inner face since it is next to the vehicle.A The shaft 5 is slidingly :mounted in a casing` or sleeve 7 which has its outer portion cylindrically bored, its inner portion threaded at S, and intermediate fillets at 9, 9, presenting' short flat portions toward the shaft 5. The shaft flattened for a portion of its length at 1 0, 10, to correspond with the inward projections or fillets 9, so that the shaft may slide between the said fillets. The flattened portions 10 are preferably produced. by cutting' the outer portion of the shaft diametricallyopposed shoulders 11, 11. These flattened portions may be otherwise produced, if desire'd. The inner portion of the shaft 5 is reduced, formed cylindrical, and threaded at 12, the diameter of the threaded portion 12 being less than the distance between the inner faces of the fillets 9. An operating sleeve nut 13 is arranged at the inner end of each casing or sleeve 7 and is externally threaded at 14- to gage the threaded portion 8 of the respective sleeve 7. The nut 13 has an axial bore internally threaded at 15,v adapted to engage the threads 12 of shaft 5. The threads 12 and 15 areof the same size and number per inch as the threads 8 and 14, but are set at the opposite angle so that, for example, threads 8 and 1alare right-hand threads While the threads 12 and 15 are left-hand threads. Of course, the opposite arrangement of threads, that is, left-hand threads for 8 and 141 and right-hand threads for 1Q and 15 may be employed, but are not preferable because the operation of the operating sleeve nut 13 would then be reverse to the natural operation.

The parts of shaft 5 are carefully proportioned so that the sliouldei's'll will contact with the uppei` edges of fillets 9 before the operating` nut 18 can be completely unsorewed from sleeve 7. Hence the nut 13 cannot be accidentally lost or removed under conditions where it is liable to be lost. lnitially the parts are assembled. by placing` them in the position indicated in Figure 5 and threading the shaftl 5 down until the flat portions 10 engage the fiat faces of lillets 9. Further rotation of the shaft becomes imaossiblc and the shaft may then be drawn further down or inward (down being einployed to indicate the movement when the locking device is atthe highest point of the wheel) by rotation of the operating nut 18 toward the left, that i s, contra-clockwise, until the parts assume the position indicated in Figure l. A washer 16 is then snapped over the shank of nut 13 so as to lie between the shoulder of the nut at the terminus of threads 14: and the end of the sleeve 7 whei'eby the nut cannot be returned to the position seen in Figure 5 until the washer is removed. The type of washer 16 is susceptible of wide variation, the principal object being to provide an obstruction which while susceptible of removal when desired will remain with sutlicient permanency not to become dislocated in use and will form an obstruction preventing the nut from being moved to its uppermost or radially outermost position. It is also desirable to have the washer 16 so constructed as to be susceptible of easy removal. without danger of .accidental dislocation. The shaft 5 and nut 13 ai'e thus effectively prevented from disconnection or correspond with and en-l v an annular flange removal from their operative relation to the sleeve neeted after washer 16 has been removed from nut 13. `Washer 16 is shown as formed of spring wire with a laterally extended loop 16 in its length and an inturned end portion 16 at one end to extend into an appropriate recess or aperture in the shank of nut 13. Hooked end 16 prevents shifting of the washer about the sha-nk of the nut, and loop 16 is adapted to receive theend of Aa prying instrument, such as an ordinary punch, so as to facilitate easy springing of the washer from the nut when desired. A slightly modified form of this Washer is shown in Figure S, wherein the washer 16a has the tool-receiving loop 1Gb but is not provided with a bent or hooked end. ln Figure 9 is shown a further inodified form of the washer wherein the body portion 16c of the washer conforms generally with that 0f the other washers shown except that the intermediate loop is omitted and in lieu thereof a loop 16e is provided at the end portion of the washer terniinating` in the shank 16d, which shank functions the same as the hooked end 16. Obviously, in removing the washer 16c the operating or prying tool is inserted into the loop Sleeve 7 is provided at its outer end with 17, preferably beveled, and the felly band 2 and felly 1 are radially bored to accommodate the sleeve 7 the felly band. being reamed out to accommodate the flange 17. The sleeve with its locking device is placed within the bore and secured in place by wood screws 16, 1S, passed partly through the material ofthe iiange 17 and partly through the material of telly band 2.

In operation, the rim l is placed on the wheel body substantially in the position indicated in dotted lines in Figure 1, the several locking wedges 6 being'withdr'awnto substantially the position indicated in Figure el, during the application oftheriin, and being then projected to the position indicated in full lines in Figure 1, whereby contact'of the two inclined engaging faces at the point of each locking` device causes the demountable rim to shift from substantially the position indicated in dotted lines to substantially the position indica-ted in full lines. It will be noted that when the operating nut 13 is revolved to the right, that is clockwiseuthe threaded portion 14 will be threaded into the threads 8 and thus cause the operating nut 13 to move in a radially outward direction. At the same time, the left-hand threads 12 and 15 back off with respect to each other and thus give the shaft 5 an additional radiallv outward thrust, so that the outward travel of the shaft 5 is double in distance and speed to that of nut 18. When the nut 13 of each of the several locking devices has been screwed up as far as it will go, the rim 4;- is

dui'ing use, but may be easily discony l sleeve adapted to nasi-,aaa

eectively locked in position and ready for use.

What I claim is l. In a locking de vice for the demonntable rim of a Wheel, the combination with a he" embedded in the peripheral portion of the wheel and having an internal bore, one end portion of which is cylindrical and the other end portion threaded7 the sleeve having an intermediate fiat portion between the cylindrical and threaded portions of its bore and the fiat portieri terminating in a shoulder facing toward the cylindrical portion of the bore, a rim locking` shaft having acylindrical portion adapted to fit Within the cylindrical bore of the sleeve, said shaft having` a flatportion corresponding with and adapted to slide along; the intermediate dat portion of the sleeve and 'the shaft having a shoulder at the terminus of its flat portion facing the first mentioned shoulder, and the shaft havingl a threaded shank beyond the fia-t portion of' a diameter snfiiciently less than the diameter of the cylindrical portion for enablingthe threaded shank to move past the fiat portion of the sleeve, the thread of the shank being of opposite pitch With respect to the thread of the sleeve, and a sleeve nut internally and externally threaded and having its external threads adapted to engage the threads of the sleeve and its internal threads adapted to engage the threads of the shank.

t2. .lin a locking device for the demonntable rim of ivheei, the combination With a sleeve adapted to be embedded in the peripheral portion of the Wheel and having; an internal bore, one end portion of which is cylindrical and the other end portion threaded, the sleeve having an intermediate dat portion betiveen the cylindrical and threaded portions of its bore and the flat portion terminating in a shoulder facing toward the cylindrical portion of the bore, a rim locking` shaft having); a cylindrical portion adapted to fit Within the cylindrical lore of the sleeve` said shaft having a fiat portion corresponding with and adapted to slide along` the intermediate fiat portion of the sleeve and the shaft having a shoulder at the terminus of its flat portion facing the rst mentioned. shoulder and the shaft havinpi a threat ed shank beyond the fiat portion of a diameter snfiiciently less than the diameter of the cylindrical portion for enabling` the threaded shank to move past the flat portion 'of the sleeve, the thread of the shank being;` of opgosite pitch With respect to the thread of the sleeve, and a sleeve nut internally7 and externally threaded and having its external threads adapted to engage the threads of the sleeve and its internal threads adapted to engage the threads of the shank.7 the parts being proportioned to enable the shaft to be revolved Within the cylindrical portion of the sleeve sufficiently for causing` the threaded shank to be partially screwed into the sleeve nut While the sleeve nut is partially screwed into the sleeve and being; limited in the extent to which the shank may be threaded into the sleeve nut l the contacting of the [iat portion of the shaft with the flat portion of the bore of the sleeve. the contacting.- of such flat portions being adapted to prevent further revolution of the shaft while leaving the shaft free to be reciprocated b v movement of the nut.

3. In a locking device for the demonntable rim of a vvheel, the combination with a sleeve adapted to be embedded in the peripheral portion of the Wheel and having `an internal bore, one end portion of Which is cylindrical and the other end portion threaded, the sleeve havingl` an intermediate [iat portion between the cylindrical and threaded portions of its bore and the flat portion terminating in a shoulder facing toward the cylindrical portion of the bore, a rim locking' shaft having: a cylindrical portion adapted to fit ivitliin the cylindrical bore of the sleeve, said shaft having a flat portion corresponding vvih. and adapted to slide along the intermediate flat portion of the sleeve and the shaft having a shoulder' at the terminus of its flat portion facing the first mentioned shoulder, and the shaft havin@r a threaded shank beyond the flat portion. of a diameter sniiiciently less than the diameter of the cylindrical portion for enabling` the threaded shank to move past-the fiat portion of the sleeve. the thread of the shank being' of opposite pitch With respect to the thread of the sleeve. a sleeve nut internally and externally threaded and havin;r its external threads adapted to engage the threads of the sleeve and its internal threads adapted to engage the threat s of the shank, the parts being' proportioned to enable the shaft to be revolved Within the cylindrical portion of the sleeve sufficiently for causing the threaded shank to be partially screwed into the sleeve nnt While the sleeve nut is partially screwed into the sleeve, and being limited in the extent to which the shank may be threaded into the sleeve nut by the contacting' of the flat portion of the shank with the fiat portion of the bore of the sleeve. the contacting` of such flat portions being adapted to prevent further revolution of the shaft while leaving: the shaft free to be reciprocated by movement of the nut, and means interposed after the assemblage of the parts between a portion of the nut and aportion of the sleeve for preventing 'the nut from being` threaded into the sleeve a distance sufficient to enable the shaft to move beyond the point Where the flat surfaces are in contact.

fl. Ina locking device for the demonntable riml of a Wheel, the combination with a `sleeve adapted to be embedded in the peripheral portion of the Wheel andhaving an internal bore, one end portion or Which is cylindrical and the other end portion threaded, the sleeve having an intermediate fiat portion between the cylindrical and threaded portions of its bore and the `fiat portion terminating in a shoulder facing toward the cylindrical portion of the bore, a rim locking shaft having a cylindrical portion adapted to lit Within the cylindrical bore of the sleeve, said shaft having a Hat portioncorresponding With and adapted to slide along the intermediate flat portion of the sleeve and the shaft having a shoulder at the lterminus of its flat portion facing the `tirst mentioned shoulder', and the shaft having a threadedv shank beyond the flat porton of a diameter sniiiciently less than the diameter of the cylindrical portion for enabling the threaded shank to move past the flat portion ot the sleeve, the thread of the-shank being oli' opposite pitch with respect to the thread ot the sleeve, and a sleeve nut internally and externally thread.- ed and having its external threads adapted to engage the threads of the sleeve and its internal threads adapted to engage the threads of the shank, the parts being proportioned to enable the shaft to be revolved Within the cylindrical portion of the sleeve sufficiently for causing the threaded shank to be partially screwed into the sleeve nut While the sleeve nut is partially screwed into the sleeve and being limited in the extent to which the shank may be threaded into the sleeve nut by the contacting of the flat portion of the shaft ivith the tlat portion of the bore of the sleeve, the contacting of such flat portions being adapted to Aprevent* further revolution of the shaft While'leaving the shaft free to be reciprocated by movement ol the nut, the sleeve nut having a shank portion and a head radially inward of the shank portion, andv a Washer applied to the shank of the sleeve nut between its head and the contiguous' end of the sleeve after the assemblage of the parts for preventing the nut from being threaded into the'sleeve l'a distance suilicient to enable the shaft to move beyond the point Where the fiat surfaces'are in contact.

5. In alockingdevice for the'demountable rim of a Wheel,` the combination of detachably connected shiftable locking members adapted to be projected vand retracted, and a Washer detachably engaging one of said members for limiting the extentof projection sufficiently for vpreventing disconnection of the members the Washer being or" the split type and of spring material and formed with ka laterally outstanding loop.

6. In a lockingv device for the demoiintable rim of a Wheel, the combination of detachably connected shiftable locking `niernbers adapted to be projected and retracted, and

a Washer detachably engaging one of said members for klimiting the extent of projection suciently't'or preventing disconnection of the members, the Washer being of the split type and of spring material and having a laterally extending end portion adapted to interlock in a recess in one of the locking members. j

7. In a 'locking device -for the demonntable rim of a Wheel thecombination of detachably connected shi'ltable locking members adapted to be projected and retracted, and a Washer detachahly engaging one of` said men'ibers for limiting the extent of projection suliiciently for preventing disconnection of the members, the Washer being ol the split ltype and of spring material and being formed vvith a loop at its termina-1 portion ending in a projecting shank adapted to extend into a recess in one oli' the locking members. Y ln testimony whereof I ai'lix my signature in presence of tWo Witnesses.

Loins n. Panni/ian.

Witnesses E. M. FnEnnLiNG, E. M. KrroHrN. 

